Western Australia's hard-drinking Pilbara mining region will be hit with tough new alcohol restrictions in a bid to crack down on alcohol-related violence and harm.

Following months of speculation, the Director of Liquor Licensing has banned the sale of packaged liquor on Sundays, along with cask and fortified wine, and beer in glass bottles bigger than 750ml from the end of March.

People will only be allowed to buy one carton of full-strength beer a day, three bottles of wine, and one litre of spirits — unless they can prove they are a tourist and the alcohol will be consumed outside of town. The tourist's details will also be provided to local police within 24 hours.

"Addressing alcohol-related harm and abuse is a community-wide responsibility and cannot be ignored," Director of Liquor Licensing delegate Peter Minchin said in the much-anticipated ruling.

"I am hopeful that these restrictions, together with other government initiatives, will be the catalyst for positive and sustained change in the Pilbara region."

A series of emergency alcohol restrictions have been put in place by police in some Pilbara towns in recent weeks, as violence has escalated.

Two weeks ago, bottle shops were closed after fighting broke out in the nearby town of Roebourne.

The figures are stark.

Almost half of all domestic violence incident reports in a year involved alcohol — and a third of these involved children.

In submissions to the Director of Liquor Licensing, the WA Department of Child Protection and Family Support said family and domestic violence was one of the leading reasons for contact with the department.

It is estimated 30 per cent of all children in care in the Pilbara have suspected Fetal Alcohol Spectrum Disorder (FASD), the department said.

Port Hedland has had a ban on the sale of alcohol on Sundays since 2004.

Port Hedland Mayor Camilo Blanco welcomed the restrictions, adding they could have been even stronger.

"I think we need to be realistic and support strong changes that reduce that dysfunction in the community," he said.

"At the end of the day when you have hundreds of kids on the street at night and they are on the street because it's unsafe in their own home due to excessive alcohol consumption … we need to make a stand and create a better life for those kids who don't have the ability to change their lives themselves."

Bloodwood Tree Association, a charity that works with at-risk Aboriginal and Torres Strait Islander clients, said greater treatment options were also needed.

"It does seem to be the best compromise of a very difficult situation, balancing many different interests," the association's chief executive officer, Kelly Howlett, said.